VM images built with Image Builder with some providers use default credentials during builds
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-798.
Summary
A security issue was discovered in the Kubernetes Image Builder versions <= v0.1.37 where default credentials are enabled during the image build process when using the Nutanix, OVA, QEMU or raw providers. The credentials can be used to gain root access. The credentials are disabled at the conclusion of the image build process. Kubernetes clusters are only affected if their nodes use VM images created via the Image Builder project. Because these images were vulnerable during the image build process, they are affected only if an attacker was able to reach the VM where the image build was happening and used the vulnerability to modify the image at the time the image build was occurring.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Kubernetes | Image Builder | up to 0.1.37 | 0.1.38 | Patch available | CNA |
| — | github.com/kubernetes-sigs/image-builder (Go) | before 0.1.38 | 0.1.38 | Patch available | GHSA-8jpg-62jc-hwhr |
- Image Builder VendorKubernetes Affected up to 0.1.37 Fixed in 0.1.38 Patch available CNA
- github.com/kubernetes-sigs/image-builder (Go) Vendor— Affected before 0.1.38 Fixed in 0.1.38 Patch available GHSA-8jpg-62jc-hwhr
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kubernetes-sigs:image_builder:*:*:*:*:*:*:*:* | before 0.1.38 | Vulnerable | kubernetes-sigs |
- cpe:2.3:a:kubernetes-sigs:image_builder:*:*:*:*:*:*:*:* Versions before 0.1.38 Vulnerable ·kubernetes-sigs
Remediation
- Fix · CNA Image Builder (Kubernetes) Fixed in 0.1.38
- Fix · GHSA-8jpg-62jc-hwhr github.com/kubernetes-sigs/image-builder (Go) Fixed in 0.1.38 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2024-9594
- 2026-10-03 Alias added: GHSA-8jpg-62jc-hwhr
References
More Kubernetes vulnerabilities
- TI-2025-01719 ingress-nginx admission controller RCE escalation CVSS 3.1CRITICAL 9.8
- TI-2018-16130 Improper privilege management in Kubernetes CVSS 3.0CRITICAL 9.8
- TI-2025-00932 ingress-nginx controller - configuration injection via unsanitized mirror annotations CVSS 3.1HIGH 8.8
- TI-2019-08418 Kubernetes kubelet exposes /debug/pprof info on healthz port CVSS 3.1HIGH 8.2
- TI-2026-02839 ingress-nginx rewrite-target nginx configuration injection CVSS 3.1HIGH 8.8
- TI-2025-18233 ingress-nginx controller - configuration injection via unsanitized auth-url annotation CVSS 3.1HIGH 8.8
Sources
- CVE-2024-9594 · CVE Program
- CVE-2024-9594 · NVD
- FIRST EPSS
- GHSA-8jpg-62jc-hwhr · GitHub Advisory Database · CC BY 4.0
- CVE-2024-9594 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences